In this paper the effect of the magnet placement on the torque generaton of an internal permanent magnet (IPM) machine used as a WEC generator is investigated. Firstly, a v-shaped IPM machine is used as an initial WEC generator and the generator operation is established for a selected wave climate, through simulations. In order to evaluate the effect of the magnet placement and configuration, four sweep cases which have several stages are analysed. The generator behavior is obtained using finite element analysis (FEA) calculations. The v-shaped magnet sweeps indicate that placing the permanent magnets closer to the airgap result in torque improvement, therefore the inset magnet configuration is also evaluated. The inset design provide a torque improvement of up till 15% compared with the initial WEC generator. When the inset generator used as the WEC generator, the current value to reach the maximum operation point decreases approximately 14%, which in turn improves the total WEC electrical system losses by 23% for the maximum operating point.

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BibTeX @conference{Tokat2016,author={Tokat, Pinar and Thiringer, Torbjörn},title={The effect of the magnet placement for an internal permanent magnet wave energy converter generator},booktitle={2016 XXII International Conference on Electrical Machines (ICEM). Lausanne; Switzerland; 4-7 September 2016},isbn={978-1-5090-2538-1},pages={2086-2092},abstract={In this paper the effect of the magnet placement on the torque generaton of an internal permanent magnet (IPM) machine used as a WEC generator is investigated. Firstly, a v-shaped IPM machine is used as an initial WEC generator and the generator operation is established for a selected wave climate, through simulations. In order to evaluate the effect of the magnet placement and configuration, four sweep cases which have several stages are analysed. The generator behavior is obtained using finite element analysis (FEA) calculations. The v-shaped magnet sweeps indicate that placing the permanent magnets closer to the airgap result in torque improvement, therefore the inset magnet configuration is also evaluated. The inset design provide a torque improvement of up till 15% compared with the initial WEC generator. When the inset generator used as the WEC generator, the current value to reach the maximum operation point decreases approximately 14%, which in turn improves the total WEC electrical system losses by 23% for the maximum operating point.},year={2016},}

RefWorks RT Conference ProceedingsSR ElectronicID 246717A1 Tokat, PinarA1 Thiringer, TorbjörnT1 The effect of the magnet placement for an internal permanent magnet wave energy converter generatorYR 2016T2 2016 XXII International Conference on Electrical Machines (ICEM). Lausanne; Switzerland; 4-7 September 2016SN 978-1-5090-2538-1SP 2086OP 2092AB In this paper the effect of the magnet placement on the torque generaton of an internal permanent magnet (IPM) machine used as a WEC generator is investigated. Firstly, a v-shaped IPM machine is used as an initial WEC generator and the generator operation is established for a selected wave climate, through simulations. In order to evaluate the effect of the magnet placement and configuration, four sweep cases which have several stages are analysed. The generator behavior is obtained using finite element analysis (FEA) calculations. The v-shaped magnet sweeps indicate that placing the permanent magnets closer to the airgap result in torque improvement, therefore the inset magnet configuration is also evaluated. The inset design provide a torque improvement of up till 15% compared with the initial WEC generator. When the inset generator used as the WEC generator, the current value to reach the maximum operation point decreases approximately 14%, which in turn improves the total WEC electrical system losses by 23% for the maximum operating point.LA engDO 10.1109/ICELMACH.2016.7732810LK https://doi.org/10.1109/ICELMACH.2016.7732810OL 30